Express 2500 V8-6.6L DSL Turbo (2010)
3. Install J-46594 into the bolt hole in the fuel injector bracket.
4. Install a flare nut wrench onto J-46594 and pull back away from the fuel injector, until the injector releases from its seat.
5. Remove the J-46594.
Note: The unique fuel injector flow rates are programmed into the ECM according to cylinder location. Mark the injectors for correct
re-installation to the same cylinders. Failure to do so may result in a poor driveability condition.
6. Remove the fuel injectors with brackets.
7. Remove and discard the copper washer from the fuel injector bore.
8. Remove and discard the fuel injector O-ring from the injector.
Fuel Injector Cleaning and Inspection
Note: If reusing the old injectors perform the following:
1. Use a soft bristle non-metallic brush and Top Engine Cleaner, GM P/N 1052626 or equivalent, to remove any deposits from the nozzle tip (1) and
